Development of a Pyrite Regrind Circuit at Telfer Gold Mine

摘要: Telfer Gold Mine is a gold-copper mine in the eastern Pilbara of Western Australia, owned and operated by Newcrest Mining Limited. Telfer's ores are processed dual train, 21 Mt/a, concentrator where gold primarily recovered gravity concentration fl otation gold-bearing copper concentrate. A minor portion also to pyrite concentrate that undergoes treatment via carbon-in-leach (CIL) cyanidation. The recovery CIL circuit below industry standard operates with high reagent consumption rate. With new fi ne-grinding facility, process plant will have ability liberate from recover these prior existing leaching circuit. This improve overall extraction, while reducing article an overview development this methodology. Size-by-size analysis mineralogical studies monthly composites identifi ed factors limiting causes consumption. Laboratory confi rmed relationship between regrind product size leach recovery. addition intermediate stage ensured at same time operating costs. Without stage, additional regrinding alone would be prohibitive towards increasing Pilot scale conditions required selectively as well establishing full energy requirements. Construction facility currently underway.